apart from brazil and argentina, taxes are low across the region. how do you increase them. as we all know in the united states, entitlements once given are hard to take back. it's hard to read about those who climb out of poverty. but latin america faces challenge to sustain these gains, otherwise we could look back on this period as a peak from which it fell. >>> up next we tend to think of international politics as a complicated science. my next guest says it's actually quite simple and it pertains to a subject we've all been taught about in school. i'll explain. ♪ announcing the all-new 2013 malibu from chevrolet. ♪ with a remarkable new interior featuring the available chevrolet mylink infotainment system. this is where sophisticated styling begins. and where it ends? that's up to you. it's here -- the greatest malibu ever. ♪ [ nyquil bottle ] just reading your label. wait...you relieve nasal congestion? sure don't you? [ nyquil bottle ] dude! [ female announcer ] tylenol® cold multi-symptom nighttime relieves nasal congestion. nyquil® cold and flu doesn't. anyo